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2018 ; 13
(3
): e0194808
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Dogs (Canis familiaris) stick to what they have learned rather than conform to
their conspecifics behavior
#MMPMID29570747
Germar M
; Sultan A
; Kaminski J
; Mojzisch A
PLoS One
2018[]; 13
(3
): e0194808
PMID29570747
show ga
In recent years, an increasing number of studies has investigated majority
influence in nonhuman animals. However, due to both terminological and
methodological issues, evidence for conformity in nonhuman animals is scarce and
controversial. Preliminary evidence suggests that wild birds, wild monkeys, and
fish show conformity, that is, forgoing personal information in order to copy the
majority. By contrast, chimpanzees seem to lack this tendency. The present study
is the first to examine whether dogs (Canis familiaris) show conformity.
Specifically, we tested whether dogs conform to a majority of conspecifics rather
than stick to what they have previously learned. After dogs had acquired a
behavioral preference via training (i.e., shaping), they were confronted with
counter-preferential behavior of either no, one or three conspecifics.
Traditional frequentist analyses show that the dogs' behavior did not differ
significantly between the three conditions. Complementary Bayesian analyses
suggest that our data provide moderate evidence for the null hypothesis. In
conclusion, our results suggest that dogs stick to what they have learned rather
than conform to the counter-preferential behavior of others. We discuss the
possible statistical and methodological limitations of this finding. Furthermore,
we take a functional perspective on conformity and discuss under which
circumstances dogs might show conformity after all.